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          <th colspan="3" align="center">Chapter 27. 
		Building Berkeley DB for UNIX/POSIX
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            <h2 class="title"><a id="build_unix"></a>Chapter 27. 
		Building Berkeley DB for UNIX/POSIX
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              <a href="build_unix_conf.html">Configuring Berkeley DB</a>
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              <a href="build_unix_small.html">Building a small memory footprint library</a>
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              <a href="build_unix_install.html">Installing Berkeley DB</a>
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        <p>The Berkeley DB distribution builds up to four separate libraries: the base
C API Berkeley DB library and the optional C++, Java, and Tcl API libraries.
For portability reasons, each library is standalone and contains the
full Berkeley DB support necessary to build applications; that is, the C++
API Berkeley DB library does not require any other Berkeley DB libraries to build
and run C++ applications.</p>
        <p>Building for Linux, Mac OS X and the QNX Neutrino release is the same
as building for a conventional UNIX platform.</p>
        <p>The Berkeley DB distribution uses the Free Software Foundation's
<a class="ulink" href="http://www.gnu.org/software/autoconf/autoconf.html" target="_top">autoconf</a>
and <a class="ulink" href="http://www.gnu.org/software/libtool/libtool.html" target="_top">libtool</a> tools to build on UNIX platforms.  In general, the standard
configuration and installation options for these tools apply to the
Berkeley DB distribution.</p>
        <p>To do a standard UNIX build of Berkeley DB, change to the <span class="bold"><strong>build_unix</strong></span>
directory and then enter the following two commands:</p>
        <pre class="programlisting">../dist/configure
make</pre>
        <p>This will build the Berkeley DB library.</p>
        <p>To install the Berkeley DB library, enter the following command:</p>
        <pre class="programlisting">make install</pre>
        <p>To rebuild Berkeley DB, enter:</p>
        <pre class="programlisting">make clean
make</pre>
        <p>If you change your mind about how Berkeley DB is to be configured, you must
start from scratch by entering the following command:</p>
        <pre class="programlisting">make realclean
../dist/configure
make</pre>
        <p>To uninstall Berkeley DB, enter:</p>
        <pre class="programlisting">make uninstall</pre>
        <p>To build multiple UNIX versions of Berkeley DB in the same source tree, create
a new directory at the same level as the build_unix directory, and then
configure and build in that directory as described previously.</p>
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